The app provides a quick and simple way to review the performance of the world's most relevant currencies. It renders the information in a linear graph where you can view and interact via touches. It also takes advantage of the iphone's landscape mode to display all the detail you need to know about the exchange rates. This product is not a currency exchange calculator, instead it provides historical information so you can see at a glance how the markets are performing. Data is updated daily from banks across the world. The app requires an internet connection to work. For how to use check the usage page. For feature requests or bug reporting contact us at bortuzar+ceh@gmail.com. Flag icons thanks to icondrawer.com